BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R93W sections 2, 11

Spacing unit8 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R93W sections 2, 11
Pool
Reunion Bay-Bakken
Zone
Zone VI
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Burlington / Marathon
Unit id
dsu-1df129efec3c1661cf01
Wells allowed by the latest linked order
8
Wells assigned to this unit
10
Pending permits inside
0
Balance under the allowance
-2
First linked order
Feb 19, 2009
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.4 two-mile laterals per 1,280 acres
Density drilled so far
9.15 per 1,280 acres

Room to drill: 0 laterals still fit at the density this unit's neighbourhood has reached (the larger of the 75th percentile of mature units within 10 miles and the median of units drilled in the last three years), placed in the widest gaps with the setbacks of the November 2026 method. Machine-made and geometric: not a commitment to drill, not a permit, order, lease or plan, and no economics. Land is counted once, so a unit under a larger unit shows only what the larger one left. How it is computed.

Map

STALLION FEDERAL 1 SLHESTENSON USA 11-2TFHTOMMERDAHL USA 11-2HDIETRICH USA 11-2TFHMYLO WOLDING 24-11HLUCKY ONE 21-2HJENSON 34-11TFHMILDRED 44-11TFHLUCKY ONE 21-2TFHURAN 31-2H1 mi

DMR footprint (NAD83) with the published surface locations of its wells. Laterals run under the unit; pads often sit on a neighbouring section.

Open in the regional 3D viewerFootprint, wells and production playbackSee on the cases and orders mapHistorical spacing units by order

Wells inside the unit

WellOperatorStatusLateral inside
STALLION FEDERAL 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,860 ft100%
ESTENSON USA 11-2TFHMARATHON OIL COMPANYActive (A)9,842 ft100%
TOMMERDAHL USA 11-2HMARATHON OIL COMPANYActive (A)9,828 ft100%
DIETRICH USA 11-2TFHMARATHON OIL COMPANYActive (A)9,803 ft100%
MYLO WOLDING 24-11HMARATHON OIL COMPANYPlugged and abandoned (PA)9,651 ft100%
LUCKY ONE 21-2HMARATHON OIL COMPANYActive (A)9,539 ft100%
JENSON 34-11TFHMARATHON OIL COMPANYPlugged and abandoned (PA)9,435 ft100%
MILDRED 44-11TFHMARATHON OIL COMPANYPlugged and abandoned (PA)9,387 ft100%
LUCKY ONE 21-2TFHMARATHON OIL COMPANYActive (A)9,356 ft100%
URAN 31-2HMARATHON OIL COMPANYActive (A)9,333 ft100%

Surveyed Bakken-system laterals with at least 660 ft of plan-view length inside the published footprint. Geometric membership, not a legal assignment; a lateral can cross several units.

Order history

  1. Order 12824Case 10844Established the spacing unitMARATHON OIL CO.
  2. Order 12896Case 10896Designated the spacing unitMARATHON OIL CO.
  3. Order 14945Case 12684Designated the spacing unitMARATHON OIL CO.
  4. Order 15256Case 12989Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  5. Order 17198Case 14948Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18909Case 16640Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 28882Case 26454Established the spacing unit, 8 wells allowedMARATHON OIL CO.

Facts extracted from signed NDIC orders whose land description covers this footprint; machine-extracted and not human-reviewed. A stated allowance is what that order allowed, not proof that it governs today.

Overlapping units

2 other units share a surveyed well with this one; overlapping units are not additive.